Home / 121,190.63-181,868.99-42,304.87

Finding the Fourth Proportional to 121,190.63, 181,868.99 and 42,304.87

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Solution

The fourth proportional to 121,190.63, 181,868.99 and 42,304.87 is: 63,486.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,190.63 : 181,868.99 = 42,304.87 : x
  2. Step 2: Convert to fraction form
    121,190.63/181,868.99 = 42,304.87/x
  3. Step 3: Cross multiply
    121,190.63x = 181,868.99 × 42,304.87
  4. Step 4: Simplify right side
    121,190.63x = 7,693,943,978.98
  5. Step 5: Solve for x
    x = 7,693,943,978.98/121,190.63
  6. Step 6: Final answer
    x = 63,486.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.